American water-willow (Justicia americana)

American water-willow

Also known as: Water willow

American water-willow (Justicia americana) is a perennial aquatic plant that will grow from 30 to 91 cm above the water. Commonly found growing along streams it forms dense colonies that help to stabilize shorelines. Its leaves look like willow tree leaves. Blooms from spring to fall with white orchid-like flowers. It grows by rhizomes that provide food for fish ducks and other aquatic lifeforms as well as beavers nutria and muskrats.

Scientific classification

Species

American water-willow (Justicia americana)

Mints plantains olives and allies

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Perennial

Lifespan

60 cm

Spread

2.5 cm

Flower Size

White, Purple, Pink, Violet

Flower Color

Deciduous

Leaf type

0 - 35 ℃

Ideal Temperature

Spring

Growth Season

Rapid

Growth Rate

Images of American water-willow

Attributes of American water-willow

Growth Rate

Expressing a rapid growth rate, american water-willow undergoes substantial development in spring. It reveals dynamic features like accelerated leaf production and swift height expansion, reflecting a unifying burst of energy. Despite slight growth slowdowns in other seasons, its springtime surge is a fascinating botanical phenomenon. This growth velocity fosters a flourishing habitat and adapts american water-willow to aquatic environments.

Distribution of American water-willow

Distribution Map

Native to North America, american water-willow typically thrives in wet habitats across the continent. Although predominantly found in its indigenous range, this species has been cultivated and naturalized in additional temperate regions. The expansion of its range has been facilitated by its adaptation to a variety of aquatic environments outside its original ecosystem.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Lakes, rivers

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for American water-willow

Once per day

Water

Full sun

Sunlight

0 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Thriving in wet conditions, american water-willow requires daily watering to mimic its native habitat. Found along stream banks and ponds, this aquatic plant relies on the availability of water, highlighting the influence of fluid resources on its growth cycle.

Pruning: American water-willow features long, lance-shaped leaves and delicate flowers, thriving in moist settings. Prune in early to late spring to remove dead stems and enhance growth. Thinning overcrowded areas boosts air circulation, while regular pruning maintains shape and promotes new growth for improved health and appeal.

Propagation: Adaptable to terrestrial and aquatic environments, american water-willow flourishes in dense stands by stream banks and shallow water. Propagation involves carefully dividing root structures and replanting sections in moist, well-draining soil or shallow water to promote new growth. Gentle handling of roots is crucial for success.

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